Algebra Keystone Module 1 Practice Test (2025)

Front

What is a polynomial?

Back

A polynomial is a mathematical expression that consists of variables, coefficients, and non-negative integer exponents. For example, 2x^2 + 3x + 5 is a polynomial.

Front

How do you solve for variables in an equation involving polynomials?

Back

To solve for variables in a polynomial equation, combine like terms, isolate the variable on one side of the equation, and then solve for the variable.

Front

What is the formula for the height of Plant A after 'd' days?

Back

Height of Plant A = 1 + 0.5d, where d is the number of days.

Front

What is the formula for the height of Plant B after 'd' days?

Back

Height of Plant B = 3 + 0.25d, where d is the number of days.

Front

How do you find the day when two plants are the same height?

Back

Set the height equations equal to each other and solve for 'd': 1 + 0.5d = 3 + 0.25d.

Front

What does the inequality |6.75 - x| < 0.25 represent?

Back

It represents the range of values for x that are within 0.25 units of 6.75, which translates to 6.5 < x < 7.

Front

What is a compound inequality?

Back

A compound inequality consists of two or more inequalities that are combined using 'and' or 'or'. For example, x ≤ 3 and x ≥ 0.

Front

How do you graph a compound inequality?

Back

To graph a compound inequality, shade the region that satisfies both inequalities on a number line.

Front

What is the total cost formula for multiple items?

Back

Total Cost = (Number of Item 1 * Price of Item 1) + (Number of Item 2 * Price of Item 2) + ... + Tax + Tip.

Front

How do you calculate tax on a total amount?

Back

Tax = Total Amount * Tax Rate. For example, if the total is $100 and the tax rate is 8%, then Tax = 100 * 0.08 = $8.